Basic Electrical Principles

Basics and fundamentals.

In this section

Diversity and Maximum Demand
An explanation of diversity and how the maximum load of a circuit or complete electrical installation can be assessed.

Neutrals in AC electrical circuits
What a neutral wire is, how neutral is derived at the supply transformer and why a neutral wire isn't always safe.

Voltage Drop in Electrical Circuits
Voltage drop explained - why it occurs and how to minimise it.

Voltage, Current, Resistance & Power
Explanation of basic electrical terms voltage, current, resistance and power.